Machine for the reproduction of sculpture



Sept. 16, 1930. E. QUATTROCCHI MACHINE FOR THE REPRODUCTION OF SCULPTURE Filed Feb. 26, 1927 6 Sheets-Sheet WVH TOR Edmondo Quafirocch/ Sept. 16, 1930.

E. QUATTROCCH] MACHINE FOR THE REPRODUCTION OF SCULPTURE 5 Sheets-Shed 2 Filed Feb. 26, 1927 III/111111111145 711 w a m //Vl /V70/? falmando Ouaflrocc/w' Sept. 16, 1 930. E. QUATTROCCHI 1,776,041

MACHINE FOR THE REPRODUCTION OF SCULPTURE Filed Feb. 26, 1927 5 SheetsSheet 4 //Vl E/V 70/? famondo Qzzaffrocc/v/ F w P Sept. 16, 1930. E. QUATTROCCHI 1,776,041

MACHINE FOR THE REPRODUCTION OF SCULPTURE Filed Feb. 26, 1927 5 Sheets-Sheet 5 Jim/24 a @miZ/wa'kz' Patented Sept. 16, 1930 j- UNITED STATES EDMONDO QUATTROCCHI, OF PARIS, FRANCE PATENT OFFHZE MACHINE FOR THE REPRODUCTION OF SCULPTURE Application filed February 26, 1927, Serial No. 171,335, and in France June 17, 1926} The present invention relates to a machine Wh1ChPI0V1d8S for the reversed reproduction I of the pattern, i. e. a piece of sculpture which is symmetrical with the first.

The said machine comprises a main frame or base upon which are mounted two supports or-stocks serving respectively to hold the original piece, such as a statue or the like, and 'the block of material from which the reproduction is to be formed. The said stocks are rotatable through like angles by means of a single controlling mechanism.

Upon the said main frame is mounted a frame or chassis which may be pivoted about and secured in the desired position, and said frame supportsthe reproducing apparatus,

. which essentially comprises a pivoting bar carrying a tracer and a cutting tool whereof one follows the surface of the statue and the other reproduces the indications given by the first device, upon the block or piece of work. Each exploring or contact piece is mounted on a slide which is slidable on the bar, and both' slides are moved in conjunction by a single mechanism. 7

The appended drawings show by way of example various embodiments of the inven- 1 tion.

7 Fig. 1 is a front elevation of the apparatus, and

Figs. 2 and 3 are respectively an end elevation and a plan view.

Figs. 4 and 5. show on a larger scale a front elevation with parts in' section, and an elevational view of. a detail.

Fig. 6 showson. a larger scalea' partial vertical section of a'tube for the frame.

Fig. 7 is a cross-sectionof a stock, on the line 77 of Fig. 3.

Figs. 8 and 9 show sections of'the bar car rying thev slides, on the lines 88 and 99 of Fig. 1 respectively. Fig. 8 is a view anal-ogousto Fig. 8, showing the cutting tool.

Fig. 10 is a front View of a slide.

Fig; 11 is a vertical section of the mechanism controlling the slides.

The machine herein represented, which is adapted for the reproduction of the reversed reproduction of the pattern, comprises a 'main frame 1' upon which are adjustably mounted the two supports 2 and in which are rotatable the respective members ia-nd 5, designated as stocks, whereof the first supports the original statue or theli-ke, and the second the block or mass of material serving for the reproduction. Upon each of the supports 2-3 ismounted a bearing 6 carrying the shaft 7' which may be turned by hand by means of the hand'whecl 8; to the shaft 7 are keyed two worms 9 h aving respectively right and left handed threads and coacting with a corresponding. toothed portion formed upon each of the stocks 4 and 5, so-that upon turning thesaid hand wheel the two stocks will rotatethrou'glt the same angle but in opposite directions. The base portions of the bearings 6' com prise slots for the insertion of pins: 192' and 103 which are secured to the supports 2'3 (Fig. 7) one of the said pins: carries a nut 11, and the other pin carries an eccentric 12 which is actuated (by means of a stud 104;) by the milled knob 13; a 111113 1 3" cooperates with the knob 13 forholding the said bearin upon the support; v

n this manner, if the stocks aretohe no tated independently of one another, theecceiu tries 12 are rotatedaf ter loosening'tllenuts 11 and 13so as to releasethe worm- 9 from the toothed parts of the stocks..

Upon the frame 1 and near its ends is mounted a support 14 carryingan. axle: upon which is rotatablethrough ball bearings-a: counterweight 15 which may be held inn a given; position by the fasteningbolt. or catch. 16'which is inserted into one ofa set ofholes in the said counterweight. Upon the two counterweights is mounted a framewhose u-prights consist of twotubesli, which are connected together at the top by the tubes: f8; said tubes being assembled by the connecting members 19. To increase the rigidity of the said frame, the tubes 17-18 are provided! at the ends with the-pinned members 1'9 (Fig. 6) which extend fromthe tube andare threaded to receive the securing nuts; thetubes are traversed by the steel rods 20 which are threaded at theends to receive the nuts which maintain th'em inthe tubes.

Upon the uprights of said frame are 1 .1 r and are connected togetl ier"atthe onter-ends c; by al bar 28 of triangular section; withq t 1 beingrigidly secured"; the saidVbar inus'tturnf carrying a rib.25 for strengthening purposes.

mounted the boxes 21 'which are slidable on" the'tubes 17 and may be held at any desired height above the'mainframe 1 of the a'ppa-c ratus bythe nuts QQQPEach hon 21 carries an axle 23 which is mounted in ball bear= ings and to which fissecu-red a fiat bar-24 At'one end ofthe bars 24 is piyotally mount ed, by means of ball bearing,ithe bar 26 The two bars 26are spacedapart by a tube 2? only withdifficulty, andit is heldbySCrews 29; (FigsA and operated thewrenches 30', jeachscrew carrying a shoulder- 29 'en gaged in a corresponding hole init'he bar 26;;

the-screws 29 are {seemed in the properposiv tionf by the set screws I 3,1 with interpositionthreads ofthe'screws 29,

of ,ahronze hlock 32 to preventida'mage tothe rigidity," nd co ists, 70f, WQ: bars 33 crgssconnectefd 'loy 'the tubesi 34 and braced bysthe stays 35: andjthe-memloers 37 which i j latter aresecured by ajcentrjal member 38 held bythesaid staysr Upon' the said 'bar. jare V *8'andvlg y uitablyconnectedtogether,the

g-slidably mounted; the'two -carri ages 7 or slides 39 and: O of-like construction, these consisting forinstance of t'hree brassplates" (Figs;

two side platsibein'g piercedflwith holes so which may be held'by screws f The tracer 43 comprises a pointed'ipo-ition (Fig 8) by means. of which thgstjatutei tor? the like) on the stock 4:, "m be ajcxlilored';

V thecuttingtoolljhas-a sluitables'hapeshown? on, Fig.- 8 andser'ves to 'eut into :a plaster l block mounted on: the stock 5 andQ-toethus 'formvthecounter part. of the original statue.

To the outerlljateral plate of each slide is V secured an axle 46r 1ipon which is engagedjfa in the drawings was provide'dat itsvz'ends with axles lup'on' WhlCllaiG mounted the rollers 48 adapted'to rollupon'the' bar 28 ;v a milled;

. c upperand'the internal lateral face of thehar v 28; are accurately trimmed; the internallat is perfectly-rectilinear, from the factthatfthe eral plate of :thesaidcarriage' or slide. ,i s

Uponeach slide is mounteda rack co- ,1 acting with a pinion 51 whose rotation is con-' distance between the two stocks; inthe'irb trolled by a hand Wheel52 (FigsiQ and; 10 theipinion 51 is mounted in a supportrr 53 which is secured exactly atthe middlev of the terioriof thesupportarefmoyahle the racksj i 0Whib ar}br ug11t intol'contactiwiththeir pi nions by meanso'f-the springsufi l bearing v uponthe screws 55 connecting together the --twe branche fthe-sup ortts. V

turningthe hand wheel 52 .ineither di- .5 st e rbr usht ee her by equal a t "with'refereiice tofthe middlj'oftheloar 28, so t st 1561 9 1 6uponth p1 tSt r b o kv d s- 1,po ecte e ckfi; hz m of sculp ure original. To obtaintherequirfldwaccuracyof:I a s5 i of the c counterwelghti 15} must. be parallel ;to,

; the-work, the line connecting" the pit/ ot axles i hehexe's 21 a d m i t e's u tedy th ame 3 i 'p enefi nd;f th rti he ei weg nes stahi Weys eI-em t yp ell e dg' if .e.

frame I-alSmdi t i ;QI ;{;t e an t ne 1 weight's, when theapparatus. isifilccted, these er erry"fe in t n ll- 5 r i or 1- e r e au nd e e i 6i li show rthe le e td s r ce a wh th. a Qm et isht el i t -Pla d- To this {pur pose the ga ge; 56

weights aretolo e disposed. The, rigidity givenlto the' whole f deyice 1 t 'e sse istili ii h fee weenie- 1s the edge" are at exactly the same hei gh ve th ma nfr m et-call tim s, '5

23' e i he' been l ennecte j'ustahle weight 571 (Fig; ifthe deyice in indifieren eq maintains? hbrium 7 at. an

spring :47" which ma have th or h wnabanza s eeenect si with n,ledi i eb ew ig f 53-158 in such manner that the'tracer43iandfcut 'z I I the originalgstatueand the fpiece ofwork." 'Iii;

; {,knob 49, screwed to theaXle'4i-6 serves to -press;-F g-2,12 e gh 1 sp 'aced the-front 1 i a v ther0llersi48 strongly againstthe said ha r}; theedgeofthebar:as shownatA inFig. 8

utinghtool 4 L will always heapplid against P t fi he kba 0T n xtt e pe torrbut it might be placed at the, rear 1 of the ppe iator iv should thelconditions of the work Irequire it.

g the b0Xesg21, these" may hei held upon the prigh 17 at th p op z he g t ccord ngtov .1

' e efie the boxes ltbe operatgr mug 11031 -11; P ve t "ellf ist rti nof; h Y

gdotand dash linesiin Fig. 6, is forme d' bya i f fiat bar proyidedat its two, ends with pins Joe 10 51 w it whic mer ble n fli ee f en n ier a r '1 v weights permits to obtain'the essential: co 3 7 To obviate all fatigue to-the pperato'r i .a Q-Ye devi e which i r pi ted ao i the. l i c means of the screws and-nutSQZsecur-a,

3' strongly applied against the correspondin ;the w k hutit is obviousthatafter;eachdis iaceoi the bar, Y 120 adapted to slide on said bar and receiving the Y stocks through equal angles, but in contrary directions, a rigid frame structure mounted on the machine frame, means for giving said structure the desired inclination and means for maintaining the latter, a second rigid frame structure pivoted to the first, arms pivoted to the said second structure, a bar mounted between said arms, two holders first a tracer andthe second a cutting tool for engaging the said block, and means for simultaneously displacing the said holders and. the tools secured thereto in contrary di- 7 rections.

2. In a machine for the reproduction of I sculpture, comprising two stocks for supporting a pattern and a block for the reproduction, of said pattern respectively, the combination of a main frame, two supports on the said frame, the said stocks being rotatably mounted in the said supports, a longitudinal shaft on the said frame, two wforms keyed C to said shaft and having respectively right and left handed threads, a threaded portion provided on each of the said stocks and adapted to engage the said worms so as to be rotated through equal angles but in contrary directions when the said shaft is actuated, a rigid frame structure mounted on the machine frame, means for giving said structure the desired inclination and means for maintaining the latter, a second rigid frame structure pivoted to the first, arms pivoted to the c said second structure, a bar mounted between said arms, two holders adapted to slide on said bar and receiving the first a tracer and the second a cutting tool for engaging the said block, and means for simultaneously displacing the said holders and the tools secured thereto in contrary directions.

3. In a machine for the reproduction of sculpture, comprising two stocks for sup --3 porting a pattern and a block for the reproduction of said pattern respectively, the combination of a main frame, two supports on the said frame, the said stocks being rotatable in the said supports, means for rotating the said stocks through equal angles, but in contrary directions, a rigid frame structure mounted on the machine frame and whereof the uprights are situated in planes strictly planes and maintained in any desired position, a second rigid frame structure pivoted inside the first frame structure by means of ball-bearing mounted axles which may be fixed at any desired height on the said uprights, arms secured by means of ball-bearings to the said second frame structure in a parallel disposition, a bar mounted between sa d arms, two holders adapted to slide on said bar and receiving the first a tracer and the second a cutting tool for engaging the said block, and means for simultaneously displacing the said holders and the tools secured thereto in contrary directions.

4. In a machine for the reproduction of sculpture, comprising two stocks for supporting a pattern and a block for the reproduction of said pattern respectively, the combination of a main frame, two supports on the said frame in which the two stocks may rotate through equal angles but in contrary directions, a rigid frame structure pivoted to the first, a bar pivotally mounted on the said second frame and adapted to be displaced parallelly to the longitudinal axis of the ma- U chine, the said bar carrying two slidable holders receiving respectively a tracer for following the contour of the pattern and a cutting tool for engaging the said block, so that said tools, for a given position of their holders upon the said bar may be displaced only in planes which are perpendicular to the longitudinal axis of the machine frame, a rack carried by each of the said tool holders, a pinion engaging the said racks so that a rotationrof the said pinion in a given direction will correspond to an equal displacement of the tool holders but in contrary directions.

In testimony whereof I have hereunto afiixed my signature.

EDMONDO QUATTROCOHI. 

